The Charge State of Protons with 90 and 100 keV Energies Decelerated in Hydrogen Plasma
The Charge State of Protons with 90 and 100 keV Energies Decelerated in Hydrogen Plasma
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DOI：
10.1155/2021/6685626
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发表时间：
2021-02
影响因子：
0.9
通讯作者：
Y. Lei;R. Cheng;Yong-tao Zhao;Xianming Zhou;Yu Wang;Yan Chen;Zhao Wang;Zexian Zhou;Jie Yan
中科院分区：
文献类型：
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作者：
Y. Lei;R. Cheng;Yong-tao Zhao;Xianming Zhou;Yu Wang;Yan Chen;Zhao Wang;Zexian Zhou;Jie Yan
测量了能量为90和100keV的质子穿透氢等离子体靶的能量损失，其中等离子体的电子密度约为1016 cm−3，电子温度约为1-2 eV。结果表明，质子在等离子体中的能量损失明显大于在冷气体中的能量损失，基于Bethe模型计算的实验结果可以用氢等离子体中质子有效电荷的变化来验证。对于100keV的质子，有效电荷保持为1，而对于90keV的质子，有效电荷减少到约0.92。此外，还使用了两个经验公式来提取有效电荷。
Energy loss of protons with 90 and 100 keV energies penetrating through a hydrogen plasma target has been measured, where the electron density of the plasma is about 1016 cm−3 and the electron temperature is about 1-2 eV. It is found that the energy loss of protons in the plasma is obviously larger than that in cold gas and the experimental results based on the Bethe model calculations can be demonstrated by the variation of effective charge of protons in the hydrogen plasma. The effective charge remains 1 for 100 keV protons, while the value for 90 keV protons decreases to be about 0.92. Moreover, two empirical formulae are employed to extract the effective charge.